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Structural Aspects of Schiff Base Metal Complexes of Co(II), Ni(II) and Cu(II) Complexes Derived from 4-Hydroxy-1-ethyl quinoline
Corresponding Author(s) : B.K. Rai
Asian Journal of Chemistry,
Vol. 25 No. 2 (2013): Vol 25 Issue 2
Abstract
Complexes of Co(II), Ni(II) and Cu(II) with 4-hydroxy-1-ethyl quinolin-2-(1H)-one hydrazone [HEQH] have been synthesized and characterized on the basis of their molar mass, elemental analyses, IR, UV, molar conductance and magnetic susceptibility measurements. On the basis of above physico-chemical and spectroscopic measurements it is proposed that the compound 4-hydroxy-1-ethyl quinolin-2-(1H)-one hydrazone acts in a bidentate ligand and co-ordination proposes through azomethine N atom and oxygen atom. The remaining valency of metal ions are satisfied by neutral molecules such as ammonia, pyridine, a, b or g-picolines. Electronic spectral and magnetic susceptibility of the complexes proposes octahedral geometry for Co(II) and Ni(II) complexes. The geometry of the Cu(II) complexes is distorted octahedral in geometry.
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References
G. Wilkinson, Comprehensive Coordination Chemistry, Pergaman Press, p. 166 (1987).
D.R. Williams, Chem. Rev., 72, 203 (1972).
T.M. Sieleciki, J. Liu, S.A. Mousa, A.L. Racanelli, E.A. Hausner, R.R Wexler and R.E. Olson, Bioorg. Med. Chem. Lett., 11, 2210 (2001).
P. Sienkiewich, K. Bielawski,A. Bielawska and J. Palka, Environ. Toxicol. Pharmacol,, 10, 118 (2005).
M. Verma, S.N. Pandeya, K.N. Singh and J.P. Stables, Acta Pharma, 54, 49 (2004).
A. Shymal and M.R. Maurya, Synth React. Inorg. Met. Org. Chem., 16, 49 (1986).
K. Nakamoto, Infrared and Raman Spectra of Inorganic and Coordination Compunds, John Wiley and Sons, New York, edn. 4 (1986).